Electric Motor Overhaul Checklist

A well planned electric motor preventive maintenance programme is the key to dependable long life operation of electric motors.

Electric motor overhaul checklist.

Some sections may explain explicitly between the three configurations but have different requirements for each. All work steps that are needed for the reconditioning or overhaul of an electric motor including disassembly cleaning drying balancing and so on are carried out in close proximity at our own motor factory in berlin. Carry out electrical mechanical check tests to verify motor condition any reported faults where possible. Many sections are mainly applicable to the lv mv induction motor equipment and many others are applicable to either synchronous or dc motors.

This checklist incorporates all range of motors equipment. Electric motor test repair guide. For bearings fitted with proximity probes the unfiltered peak to peak value of vibration including shaft run out at any load between no load. Almost all electrical equipment requires planned inspection and maintenance being carrying out.

A further plus point. With the motor at normal operating temperature the vibration velocity shall not exceed 2 8 mm s rms or 4 mm s peak in any direction. This article describes a c electrical motor troubleshooting. Electric motor repair shops with an ongoing commitment to high quality standards are the ones most likely to earn certification.

The 90 year old company has a customer base consisting mainly of pulp and paper producers mining operations and cement and aggregate plants. One of the most common causes of electric motor failures is bearing failure. The measurements shall be carried out with an instrument conforming to iso 2954 10 1000 hz frequency range. With extensive modern production facilities and a high vertical range of.

Maintenance procedure to overhaul electrical motors the main aim for the maintenance of electrical motor is to ensure. Here we provide an electric motor diagnostic table a troubleshooting guide that helps diagnose and repair most electric motor problems for motors found on hvac equipment in buildings such as air conditioners furnace or air handler blower fans oil burner motors well pumps and condensate return. Low contact resistance high insulation resistance bearing lubrication proper air gap and overall dryness of the motor assembly. A sample overhaul work scope includes inspect and record all relevant data from the nameplate.

The checklist should also cover inspection of bearings. Preventive electric motor maintenance. Typical bearing problems include insufficient lubrication worn bearings hot motor excessive loading harsh external environments or replacement with the wrong bearing type. This ensures electrical equipment is kept in good working condition at all times.